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Tech Tutorials | App Reviews & Android Fixes | Fintech Shield Blog
Welcome to the Fintech Shield Blog | Your go-to hub for insightful Tech Tutorials, Unbiased App Reviews, Android Solutions, Windows Solutions and Digital innovation tips. Whether you're a curious user or a seasoned tech pro, we’ve got something valuable for you. Stay ahead in the digital era with our expert-driven guides and updates.
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Top 5 Internet Speed Booster Apps for Android | Boost Speed Instantly!
Struggling with slow internet on your Android phone? Discover how internet speed booster apps can help you enhance connectivity, reduce lag, and get the most out of your data or Wi-Fi. Whether you're gaming, streaming, or browsing, these apps optimize your device's network performance in just a tap.
Kalyan Bhattacharjee
Aug 53 min read


Japan's NICT Breaks World Record with 402 Tbps Internet Speed
Japan’s National Institute of Information and Communications Technology (NICT) has set a new world record by achieving an astonishing internet speed of 402 Tbps, redefining what ultra-fast connectivity means. Using advanced multicore fiber optic technology, this breakthrough opens the door to real-time AI processing, massive data transfers, and a future where downloading entire libraries takes mere seconds. Here's a closer look at how this innovation could reshape the digital
Kalyan Bhattacharjee
Jul 203 min read


What Is WPA? Wi-Fi Protected Access Explained Simply
WPA is the security protocol behind your Wi-Fi connection. This beginner's guide explains what WPA means, how it works, and which version is best.
Kalyan Bhattacharjee
Jul 123 min read


What Is a Dynamic IP Address? Everything You Need to Know
Wondering why your IP keeps changing? This beginner’s guide explains what dynamic IP addresses are, how they work, and why most ISPs use them.
Kalyan Bhattacharjee
Jul 104 min read


Top Cybersecurity Companies in India (2025 List & Services)
Cyberattacks in India are rising — and these cybersecurity companies are stepping up. From antivirus to AI threat detection, here’s who’s leading the charge in 2025.
Kalyan Bhattacharjee
Jul 54 min read


How to Use a Firewall on a Rooted Android Phone (Full Setup 2025)
Take control of your Android device with root-level firewalls! This guide shows you how to use AFWall+, NetGuard, and more to block unwanted app connections and enhance your phone’s privacy and performance.
Kalyan Bhattacharjee
Jun 274 min read


Mobile Data Not Working During Calls on Android? Here’s the Fix!
Is your mobile data turning off when you make a call on Android? This guide explains why it happens and how to solve it in minutes.
Kalyan Bhattacharjee
Jun 83 min read


How to Troubleshoot Google Chrome Extensions
Is your Chrome acting weird? Extensions might be the culprit. Learn how to identify, disable, and fix problematic Chrome extensions with these simple steps.
Kalyan Bhattacharjee
Jun 63 min read


eSIM Technology: The Future of Mobile Connectivity
Say goodbye to physical SIM cards - discover how eSIM is changing mobile connectivity forever.
Kalyan Bhattacharjee
Apr 223 min read


Bus Topology in Networking: Simple Yet Foundational
Learn what Bus Topology is, how it works, its pros & cons, and where it's still used today in this beginner-friendly networking guide.
Kalyan Bhattacharjee
Apr 163 min read


ncpa.cpl Command: What It Is and How to Use It
Learn what the ncpa.cpl command is, how to use it in Windows, and quickly manage your network connections with this simple shortcut!
Kalyan Bhattacharjee
Apr 72 min read


Star Topology Diagram: Structure, Functionality & Benefits
Star topology is a network setup where devices connect to a central hub or switch, ensuring easy management and high reliability.
Kalyan Bhattacharjee
Apr 23 min read


Telecommunication: Powering Global Connectivity & Innovation
Explore how telecommunication shapes our digital world, connecting people and businesses through cutting-edge technology and innovation.
Kalyan Bhattacharjee
Mar 104 min read


HTML: The Building Block of Web Development
HTML is the foundation of web development, enabling structure and content for websites. Learn its role, key elements, and why it’s essential
Kalyan Bhattacharjee
Dec 22, 20243 min read


Network Security Key | What It Is and Why It Matters (2025 Guide)
A Network Security Key is more than just a Wi-Fi password. It's your first line of defense against unauthorized access to your private network. In this blog, we explore what a network security key is, the different types (WEP, WPA, WPA2/WPA3), and why understanding it is crucial for protecting your digital footprint. Whether you're a home user or managing a business network, knowing how this key works can help you secure your data and prevent cyber threats.
Kalyan Bhattacharjee
Aug 26, 20245 min read


What is a Subnet Mask? The Key to Efficient Networking
A subnet mask is a crucial component in IP networking that helps divide large networks into smaller, more manageable sub-networks or subnets. It works by identifying which portion of an IP address refers to the network and which part refers to the host. By using subnet masks, organizations can improve network performance, enhance security, and efficiently allocate IP addresses.
Kalyan Bhattacharjee
Aug 22, 20245 min read


Hybrid Topology | Network Solution for Modern Businesses
Hybrid topology blends star, bus & ring networks offering flexibility, scalability & reliability for modern business needs.
Kalyan Bhattacharjee
Apr 7, 20243 min read


DHCP vs Static IP | Choosing the Right Network Configuration
When setting up a network, choosing between DHCP and Static IP addresses can significantly impact performance, security, and management. DHCP offers dynamic, automatic IP assignment—ideal for convenience and scalability—while Static IP provides consistent addressing, often preferred for servers and critical devices. In this blog, we break down the differences, pros, and cons of each configuration to help you make the right choice for your network.
Kalyan Bhattacharjee
Apr 1, 20243 min read


Network Security - A Deep Dive into Firewall Authentication
Explore the critical role of firewall authentication in network security, and learn how step-by-step implementation safeguards systems, controls access, and protects sensitive data from cyber threats.
Kalyan Bhattacharjee
Mar 22, 20243 min read


DHCP Lookup Failed: Understanding the Issue and Solutions
Facing a "DHCP Lookup Failed" error? Learn what it means, why it happens, and how to fix it for a seamless internet connection!
Kalyan Bhattacharjee
Mar 20, 20243 min read
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